TY - JOUR
T1 - The subduction structure of the northern Apennines
T2 - Results from the RETREAT seismic deployment
AU - Margheriti, Lucia
AU - Pondrelli, Silvia
AU - Piccinini, Davide
AU - Agostinetti, Nicola Piana
AU - Giovani, Luciano
AU - Salimbeni, Simone
AU - Lucente, Francesco Pio
AU - Amato, Alessandro
AU - Baccheschi, Paola
AU - Park, Jeffrey
AU - Brandon, Mark
AU - Levin, Vadim
AU - Plomerová, Jaroslava
AU - Jedlička, Petr
AU - Vecsey, Luděk
AU - Babuška, Vladislav
AU - Fiaschi, Andrea
AU - Carpani, Bruno
AU - Ulbricht, Pete
PY - 2006/8
Y1 - 2006/8
N2 - The project Retreating-trench, extension, and accretion tectonics, RETREAT, is a multidisciplinary study of the Northern Apennines (earth.geology.yale.edu/RETREAT/), funded by the United States National Science Foundation (NSF) in collaboration with the Italian Istituto Nazionale di Geofisica e Vulcanologia (INGV) and the Grant Agency of the Czech Academy of Sciences (GAAV). The main goal of RETREAT is to develop a self-consistent dynamic model of syn-convergent extension, using the Northern Apennines as a natural laboratory. In the context of this project a a passive seismological experiment was deployed in the fall of 2003 for a period of three years. RETREAT seismologists aim to develop a comprehensive understanding of the deep structure beneath the Northern Apennines, with particular attention on inferring likely patterns of mantle flow. Specific objectives of the project are the crustal and lithospheric thicknesses, the location and geometry of the Adriatic slab, and the distribution of seismic anisotropy laterally and vertically in the lithosphere and asthenosphere. The project is collecting teleseismic and regional earthquake data for 3 years. This contribution describes the RETREAT seismic deployment and reports on key results from the first year of the deployment. We confirm some prior findings regarding the seismic structure of Central Italy, but our observations also highlight the complexity of the Northern Apennines subduction system.
AB - The project Retreating-trench, extension, and accretion tectonics, RETREAT, is a multidisciplinary study of the Northern Apennines (earth.geology.yale.edu/RETREAT/), funded by the United States National Science Foundation (NSF) in collaboration with the Italian Istituto Nazionale di Geofisica e Vulcanologia (INGV) and the Grant Agency of the Czech Academy of Sciences (GAAV). The main goal of RETREAT is to develop a self-consistent dynamic model of syn-convergent extension, using the Northern Apennines as a natural laboratory. In the context of this project a a passive seismological experiment was deployed in the fall of 2003 for a period of three years. RETREAT seismologists aim to develop a comprehensive understanding of the deep structure beneath the Northern Apennines, with particular attention on inferring likely patterns of mantle flow. Specific objectives of the project are the crustal and lithospheric thicknesses, the location and geometry of the Adriatic slab, and the distribution of seismic anisotropy laterally and vertically in the lithosphere and asthenosphere. The project is collecting teleseismic and regional earthquake data for 3 years. This contribution describes the RETREAT seismic deployment and reports on key results from the first year of the deployment. We confirm some prior findings regarding the seismic structure of Central Italy, but our observations also highlight the complexity of the Northern Apennines subduction system.
KW - Seismic anisotropy
KW - Subduction geometry
KW - Temporary seismological network
KW - Upper mantle fabric
UR - https://www.scopus.com/pages/publications/34247364405
UR - https://www.scopus.com/inward/citedby.url?scp=34247364405&partnerID=8YFLogxK
M3 - Article
SN - 1593-5213
VL - 49
SP - 1119
EP - 1131
JO - Annals of Geophysics
JF - Annals of Geophysics
IS - 4-5
ER -